NSS Labs today released the results and analysis from its web browser security comparative evaluating the protection offered by the five leading browsers - Apple Safari 5, Google Chrome 25/26, Microsoft Internet Explorer 10, Mozilla Firefox 19 and Opera 12 - against malware downloads (also known as socially engineered malware). While Chrome’s malware download protection improved significantly - rising to more than 83% from 70% in NSS’ October 2012 comparative test - Internet Explorer 10 continues to outperform the other browsers with a block rate of 99.96%. Safari, Firefox and Opera continue to lag far behind Chrome and Internet Explorer with overall block rates of 10.16%, 9.92% and 1.87% respectively.
Source: https://www.nsslabs.com/news/press-releases/which-web-browser-offers-best-malware-protection-nss-labs-releases-new-2013-web